초록 ▼

Heteroatom containing perfluoroalkyl terminated neopentyl glycols of the formula HO[－CH2C(CH2X－E－Rf)2CH2O]1-3－H prepared from halogenated neopentyl glycols and thiols of the formula Rf－E－SH, or amines of the formula Rf－E－NH－R wherein Rf is a hydrophonic, olephobic fluoroaliphatic group of up to 20 c

Heteroatom containing perfluoroalkyl terminated neopentyl glycols of the formula HO[－CH2C(CH2X－E－Rf)2CH2O]1-3－H prepared from halogenated neopentyl glycols and thiols of the formula Rf－E－SH, or amines of the formula Rf－E－NH－R wherein Rf is a hydrophonic, olephobic fluoroaliphatic group of up to 20 carbon atoms, E is alkylene of up to 10 carbon atoms, optionally interrupted by up to three groups including －NR, －O, －S－, －SO2－, －O2C, CONR, and －SO2NR, and X is S,SO2 or NR2, where R is independently hydrogen, alkyl, or hydroxyalkyl of 1 to 6 carbon atoms are described. The polymeric reaction products of said fluorinated diols, and optionally other diols with isocyanates to prepare polyurethanes; with amines and isocyanates, to prepare polyureas/polyurethanes; with acids or derivatives, to prepare polyesters or polycarbonates are disclosed. These include polymeric, random or block urethane, and/or urea, and/or ester compositions containing the residue of at least one Rf-neopentyl glycol containing two perfluoroalkylhetero groups. These polymeric compositions provide improved thermal stability and useful low surface energy coatings with oil, water repellency and soil-release properties for textiles, glass, paper, leather and other materials.

대표청구항 ▼

A compound of formula I [Figure] (I) wherein Rf is a straight or branched chain perfluoroalkyl of 1 to 18 carbon atoms or said perfluoroalkyl substituted by perfluoroalkoxy of 2 to 6 carbon atoms, E is branched or straight chain alkylene of 1 to 10 carbon atoms or said alkylene interrupted by one to

A compound of formula I [Figure] (I) wherein Rf is a straight or branched chain perfluoroalkyl of 1 to 18 carbon atoms or said perfluoroalkyl substituted by perfluoroalkoxy of 2 to 6 carbon atoms, E is branched or straight chain alkylene of 1 to 10 carbon atoms or said alkylene interrupted by one to three groups selected from the group consisting of －NR－, －O－, －S－, －SO2－, －COO－, －OOC－, －CONR－and －SO2NR－, X is －S－or －SO2－, and where R is independently hydrogen, alkyl of 1 to 6 carbon atoms or hydroxyalkyl of 1 to 6 carbon atoms, and m is 1 to 3.